Improvement in hoisting-machines



H. "BATT. 'HOISTING MACHINE.

N0. 192,891. Pa te n ted J u1y*10,1877.

wnmssszs: I I "1 5mm N. PETERS, FHOTO-LITHOGRAPMER,WASHINGTON D C UNITED STATES PATENT OFFICE.

HENRY BATT, or KENTISH-TOWN, LONDON, ENGLAND, ASSIGNOR r0 LEONARD e. TABRAHAM, or BosroN, MASSACHUSETTS.

IMPROVEMENT IND HOIST'ING-MACHINES.

Specification forming part of Letters Patent No. 192,891, dated July 10, 1877; application filed May 12, 1877.

To all whom it may concern Be it known that I, HENRY BATT, of Kentish-Town, London, England, have invented a new and Improved Hoisting Machine, of which the following is a specification: Figure l is a plan View of my improved machine. Fig. 2 is a cross-section of the same, taken through the linear m, Fig. '1. Fig. 3 is a detail view of the sliding-gear wheel and the fast and loose pulleys.

The object of this invention is to furnish an improved hoisting-machine, which shall be simple in construction and convenient in use, being readily adjusted to Work with speed or with power, as may be desired.

The invention consists in the combination of the fast and loose pulleys, the short sh afts, the sliding-gear wheels, the large gear-wheels, and the clutches with each other, as hereinafter fully described.

E is the driving shaft, to which is attached a pulley, F, to receive the belt by which the machine is driven from any convenient power.

To the ends of the shaft E are attached two wide pulleys, G, each of which is designed to receive a straight belt and a crossed belt, which belts pass around the loose pulleys H placed upon the short shafts I, and one upon each side of the fixed pulleys A attached to the said short shafts I, so that by shifting the straight or the crossed belts to the fixed pul-- leys A the shafts I may be revolved in one or the other direction, as may be desired.

The shafts I revolve in bearings attached to the bed-plate or frame J of the machine, and upon their inner parts are placed small gear-wheels B, which are connected with said shafts by tongues and grooves, so as to be carried with said shafts in their revolution while being allowed to slide freely upon them.

To the frame J are pivoted two parallel drums, K L, one or each of which is provided with two hoisting'chains, the one winding up as the other unwinds.

To the end parts of each of the drums K L are attached two large gear-wheels,O-D.. Th e two gear-wheels O of the drum K are placed the one upon the outer side and the other upon the inner side of the hearings, in which the journals of the drum K revolve. The corresponding gear-whe'els D of the drum L are placed the one upon the inner side and the other upon the outer side of the hearings in which the journals of the drum L revolve.

The drums K L and the gear-wheels O D are so arranged that the inner sides of the gear-wheels O D upon each side may overlap each other, the brackets of the frame J being between them in such a way that the gear wheels B, by being slid upon the shafts I,

may be made to mesh with either of said wheels 0 D, or may be placed midway between said Wheels 0 D, meshing with neither.

Upon the journal of each of the drums K L are placed small gear-wheels M, the teeth of which mesh into the teeth of the outer gearwheels 0 D, and which are made to move with said journals by clutches N sliding upon their outer ends.

O are forks, hinged to the frame J, to drop over or at either side of the gear-wheels B, to

keep them in place when between the gear- S are the belt-shippers, by which the beltsare shifted upon the pulleys H A H.

By this construction, when the gear-wheels B are in gear with the gear-wheels G D, and the gear-wheels M are clutched to the journals of the drumsK L, the machine will work with great power and a slow movement. When the gear-wheels B are in gear with the gear-wheels O, and the gear-wheels M are clutched to the journals of the drums K L, the machine will work faster, but with less power-: When the gear-wheels M are left loose and the gear-wheels B are in gear with either wheels B, the gear-wheels O D, the drums K the gear-wheels O orD the machine will work L, the loose gear-wheels M, and the clutches as a single-purchase hoist ,'and with medium N, with each other, substantially as herein power and speed. a h shown and described.

Having thus describe my invention, w at I claim as new, and desire to secure by Let- HENRY BATT' ters Patent, is- Witnesses:

The combination of the fast and loose pul- STUART CHARLES FERIN, leys H A H, the shafts I, the sliding gear- JAMES MAY. 

